README.md
This directory contains a little program which allows one to
modify the send queue for prt... for those of you who feel
that Dec's new 3.2 spooling system is overkill. Also, we
have graphics printers which need to be attached when used
in plot mode. I can't any commands which allow for that.
Also I don't want all those installed tasks. The below
described program was taken from the spq (spooler queue
display) program I got from the KMS fusion kit (James
Downward's package). These two programs probably should be
merged. Also we run a friendly shop and thus any
non-priveledged user can modify prt...'s queue.

Usage:
>lkpill
or
>lpk filename.uic[;version]

The first command (lpkill) saves prt...'s receive queue
listhead and issues an abort on prt... (connecting on its
exit). It then restores the receive queue listhead and
requests prt... Note that if lpk is aborted in the middle of
its procedure that some pool will be forever lost (maybe
even a system crash). However, when used properly this
command will abort the current listing and continue on the
next file in the queue.

The second command format permits one to delete an entry in
the queue. It simply zero's the file id portion of the
receive buffer so that prt... thinks the file was previously
deleted. We direct the message from prt... to our console
which is the only tty we set to full duplex. This is needed
or else prt... could hang forever if it can't get out the
message. (It's lun 2).